DOI: 10.1002/2016GL071646
论文题名: Ring current pressure estimation with RAM-SCB using data assimilation and Van Allen Probe flux data
作者: Godinez H.C. ; Yu Y. ; Lawrence E. ; Henderson M.G. ; Larsen B. ; Jordanova V.K.
刊名: Geophysical Research Letters
ISSN: 0094-8319
EISSN: 1944-8050
出版年: 2016
卷: 43, 期: 23 起始页码: 11948
结束页码: 11956
语种: 英语
英文关键词: data assimilation
; ring current
; Van Allen Probes
Scopus关键词: Magnetosphere
; Data assimilation
; Data assimilation techniques
; Ensemble based data assimilation
; Formation and evolutions
; Inner magnetosphere
; Interactions modeling
; Particle distributions
; Ring currents
; Probes
英文摘要: Capturing and subsequently modeling the influence of tail plasma injections on the inner magnetosphere is important for understanding the formation and evolution of the ring current. In this study, the ring current distribution is estimated with the Ring Current-Atmosphere Interactions Model with Self-Consistent Magnetic field (RAM-SCB) using, for the first time, data assimilation techniques and particle flux data from the Van Allen Probes. The state of the ring current within the RAM-SCB model is corrected via an ensemble based data assimilation technique by using proton flux from one of the Van Allen Probes, to capture the enhancement of the ring current following an isolated substorm event on 18 July 2013. The results show significant improvement in the estimation of the ring current particle distributions in the RAM-SCB model, leading to better agreement with observations. This newly implemented data assimilation technique in the global modeling of the ring current thus provides a promising tool to improve the characterization of particle distribution in the near-Earth regions. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85006372804&doi=10.1002%2f2016GL071646&partnerID=40&md5=0c511715d5074f1fb8b383d647a273ac
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9282
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Los Alamos National Laboratory, Los Alamos, NM, United States
Recommended Citation:
Godinez H.C.,Yu Y.,Lawrence E.,et al. Ring current pressure estimation with RAM-SCB using data assimilation and Van Allen Probe flux data[J]. Geophysical Research Letters,2016-01-01,43(23).